This paper makes improvements on the methods of stress circle drawings. And this method can be used to calculate the strain and moment of inertia.
本文对应力圆图解法作了改进，使图解法更直观、更简便。并将改进后的图解法应用到应变、惯性矩计算中。
The theory of slip-line field is an effective method for problems of plane strain of perfect plastic solids, and the circle-fan field is used frequently.
滑移线理论是解刚塑性平面应变间题的一种有效方法，而圆扇形场则是常使用的。
The theory of slip-line field is an effective method for problems of plane strain of perfect plastic solids, and the circle-fan field is used frequently.
滑移线理论是解刚塑性平面应变间题的一种有效方法，而圆扇形场则是常使用的。
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